Lawn mower engine



FIG. 1 is a perspective view of lawn mower engine showing my new design;

FIG. 2 is a front view thereof;

FIG. 3 is a rear view thereof;

FIG. 4 is a right side view thereof;

FIG. 5 is a left side view thereof; and,

FIG. 6 is a top view thereof.

The bottom view is non-claimed subject matter.

The broken line showing in FIG. 2 is for illustrative purposes only and forms no part of the claimed design. 

The ornamental design for the lawn mower engine, as shown and described. 